() (82 - (81
G) (108)-010
xample
olution
7. Evaluate
(29)--(28)
(0) (56- (55)
(v) (2217- (2207
8. Using the identity (a + b = (a + 2ab + b), evaluate :
(i) (204)
(0) (307)
(in) (430)
9. Using the identity (@-6= (a - 2ab + b), evaluate :
(i) (94
(ii) (192
(id (389)
10. Evaluate :
(i) 59 x 61
(21) 88 x 92
(w) 94 x 106
(iv) 48 x 52
11. State whether each of the following statements is true or false :
(i) A perfect square number always has an even number of digits.
(ii) Every number ending in an even number of zeros is a perfect square.
ii) The square of a prime number is prime.
(iv) There are 10 perfect square numbers from 1 to 100.
(0) The sum of two perfect squares is a perfect square.
(vi) The difference of two perfect squares is a perfect square.
(vii) The product of two perfect squares is a perfect square.
xam
Soluti
Finding Square Root of a Perfect Square By Division Method
Answers
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